With Bluetooth or UsB? It happened to me with Bluetooth and nothing worked, like reinstalling and everything. Me and the developer were trying to find a cause. I had to restore my phone for it to work properly. And don't restore from back up after a restore, because the problem was still there with me. You have to set up as new phone. You can try contacting the developer but I'm sure you'll just need to restore if you really care about it.